Historically the Hijab was initiated as a "Don't rape me, I'm Muslim" sign to be worn by Muslim women to distinguish them from the non-Muslim women who had been captured and were being used as sex slaves by Muslim marauders.
It's stated explicitly in the Koran and Islamic commentaries.
“O Prophet! Tell your wives and your daughters and the women of the believers to draw their cloaks all over their bodies that they may thus be distinguished and not molested,” Allah tells Mohammed.
The context of Koran chapter 33 verse 59 is even grimmer if you put it in the context of verse 50 which allowed Mohammed’s army to enslave and rape captured women and the use of the Burka to distinguish between wives and slaves.
Qadri’s Irfan-ul-Quran translation comments on 33:59 that “It is more likely that this way they may be recognized (as pious, free women), and may not be hurt (considered by mistake as roving slave girls.)”
When Mohammed captured Safiyya bint Huyayy, a Jewish teenager, during his campaign of ethnic cleansing against the region's Jewish population, he told his followers, "Tomorrow if you see her covered with a veil then she is my wife; if you see her without a veil then she is a slave girl."
There are no “free women” in Islam. There are women who belong to one man and there are women who belong to all men. There are wives and daughters or women who can be enslaved by any man.
But CNN's Alyssa Camrota followed the usual left-wing habit of buying into Muslim fantasies of victimhood by suggesting that non-Muslim women adopt this degrading symbol of rape and subjugation.
“Maybe there will be a movement where people wear the head scarf in solidarity. You know, even if you’re not Muslim,” Camerota said during an early-morning broadcast on CNN’s “New Day.”
“Maybe it’s the way people shave their heads, you know, sometimes in solidarity with somebody who is going through something,” she added.
Camerota was responding to a CNN segment about Muslim women who say they live in fear of being verbally or physically attacked for wearing head scarves.
Of course the whole basis for the Hijab was for Muslim women to avoid being "molested" by singling out non-Muslim women for Muslim violence instead.